Arithmetic Series - Ambitious

Question 1: What is the common difference in the following arithmetic series:

2.5, 6.4, 10.3, ...

?

A

7.8

B

2.56

C

3.9

D

3.2

Question 2: Which of the following sequences is an arithmetic series?

A

0.125, 0.250, 0.38, 0.515, 0.655

B

17.5, 15, 12.5, 10, 7.5

C

1, 2, 3, 5, 8, 13

D

16, 8, 4, 2, 1

Question 3: What is the

25

th term in the following arithmetic series:

1, 4, 7, 10...

?

A

74

B

75

C

72

D

73

Question 4: What is the

31

st term in the following arithmetic series:

45, 42.5, 40...

?

A

- 27.25

B

- 30

C

110

D

- 31.75

Question 5: What is the sum of the first

21

terms in the following arithmetic series:

3,5,7,9

?

A

S_{21} = 368

B

S_{21} = 241

C

S_{21} = 512

D

S_{21} = 483

Test: Arithmetic Series - Ambitious